Analysis

  • max time kernel
    95s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/01/2025, 17:53

General

  • Target
    JaffaCakes118_5ecef7bab04f899f8d7e48f7364157fe.exe
  • Size 415KB
  • Sample250101-wgnbdaymbk
  • SHA256 9b75ef6d90e8ddd17b0eff86d3cb290e56bddd71f061f550083b30131013457f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Expiro family
  • Expiro, m0yv

    Expiro aka m0yv is a multi-functional backdoor written in C++.

  • Expiro payload 4 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5ecef7bab04f899f8d7e48f7364157fe.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5ecef7bab04f899f8d7e48f7364157fe.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:3480
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3480 -s 256
      2⤵
      • Program crash
      PID:1616
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3480 -ip 3480
    1⤵
      PID:1452

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/3480-0-0x0000000000F3B000-0x0000000000FCE000-memory.dmp

          memory/3480-1-0x0000000000ED0000-0x0000000000FCE000-memory.dmp

          memory/3480-2-0x0000000000F3B000-0x0000000000FCE000-memory.dmp

          memory/3480-3-0x0000000000ED0000-0x0000000000FCE000-memory.dmp